公开(公告)号：US20190206095A1

公开(公告)日：2019-07-04

申请号：US16235882

申请日：2018-12-28

申请人： Tsinghua University ,  NUCTECH COMPANY LIMITED

发明人： Yuxiang XING ,  Kaichao LIANG ,  Le SHEN ,  Li ZHANG ,  Hongkai YANG ,  Kejun KANG ,  Zhiqiang CHEN ,  Jianmin LI ,  Yinong LIU

IPC分类号： G06T11/00 ,  G06N3/08

CPC分类号： G06T11/003

摘要： An image processing method, comprising: acquiring, by a CT scanning system, projection data of an object; and processing, by using a convolutional neural network, the projection data, to acquire an estimated image of the object. The convolutional neural network comprises: a projection domain network for processing input projection data to obtain estimated projection data; an analytical reconstruction network layer for performing analytical reconstruction to obtain a reconstructed image; an image domain network for processing the reconstructed image to obtain an estimated image, a projection layer for performing a projection operation by using a system projection matrix of the CT scanning system, to obtain a projection result of the estimated image; and a statistical model layer for determining consistency among the input projection data, the estimated projection data, and the projection result of the estimated image based on a statistical model.

公开(公告)号：US20230124325A1

公开(公告)日：2023-04-20

申请号：US17967039

申请日：2022-10-17

申请人： TSINGHUA UNIVERSITY ,  Nuctech Company Limited

发明人： Zhiqiang CHEN ,  Li ZHANG ,  Xin JIN ,  Hongkai YANG ,  Xiaofei XU ,  Zhenhua ZHAO ,  Siyuan ZHANG ,  Changyu CHEN

IPC分类号： G06T7/00 ,  G06V10/25 ,  A61B6/02 ,  A61B6/03 ,  A61B6/00

摘要： The present disclosure relates to an imaging system and method for radiographic inspection. The imaging system for radiographic inspection includes an inspection area including an imaging area; a first ray source assembly, all the first targets of which are arranged in a first ray source plane; a first detector assembly, the plurality of first detector units of which are arranged in a detector plane, the detector plane and the first ray source plane are spaced apart from each other in a travelling direction of the object under inspection with a predetermined distance; and a ray source control device, configured such that when the region of interest of the object under inspection is at least partially located in the imaging area, the first ray source assembly emits X-rays simultaneously from at least two first targets to the imaging area at the same time.